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Finding the Fourth Proportional to 5,661.50, 8,476.43 and 4,270.48

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Solution

The fourth proportional to 5,661.50, 8,476.43 and 4,270.48 is: 6,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.50 : 8,476.43 = 4,270.48 : x
  2. Step 2: Convert to fraction form
    5,661.50/8,476.43 = 4,270.48/x
  3. Step 3: Cross multiply
    5,661.50x = 8,476.43 × 4,270.48
  4. Step 4: Simplify right side
    5,661.50x = 36,198,424.79
  5. Step 5: Solve for x
    x = 36,198,424.79/5,661.50
  6. Step 6: Final answer
    x = 6,393.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.